- Includes 61803 bearings and one grease syringe
- Measurable wattage savings between 1.5 and 9 watts per bearing set, depending on the level and condition of your existing bearings
- These 61803 bearings are not interchangable with the 88/188 hub 61803 bearings

The OCLV Carbon Mono Bar Extension delivers an even more aerodynamic leading edge to Trek's drag-defying Speed Concept (Gen 2). These straight and S-Bend extensions are designed to be cut to length and have internal routing for standard or Di2 cables.
- Designed specifically for 2014 Speed Concept
- OCLV Carbon fiber mono extensions
- Straight and S-Bend extensions are designed to be cut to length
- Internally-routed for Di2 and standard cables
- Designed to accept 22.2mm standard extensions

The VukaClip is all about providing the ultimate in fit, security, and adjustability for you to be faster and more efficient in your triathlon or time-trial aero position at an affordable price.
Redesigned to be easier to set up and adjust. The VukaClip is available with an above-bar or below-bar mounting system for achieving an optimized aero position. The VukaClip also has a large, redesigned armrest to reduce pressure points and increase comfort. The VukaClip is made with the industry-standard 22.2mm clamp diameter for maximum versatility, making it compatible with Vuka Alumina extensions, the Vuka Carbon Extensions as well as most extensions on the market.
Features
- Fit, security, and adjustability
- Above-bar or below-bar mounting system
- Compatible with most extensions

The Supersonic bracket (previously know as the J5) is the first and premier model of the new generation Profile Design brackets. It offers easier adjustments and a greater fit range than anything that came before it.
Pairing this bracket with the ergo armrest offers industry-leading fit options and greater comfort.
With the 35c extensions, this aerobar is suited to riders who wish to adopt an aerodynamic arrowhead hand position.
Performance
- The Supersonic/Ergo platform is designed to give riders the freedom to find their best possible position with a huge range of independence adjustments.
Fit Data
- Armrest Offset: -85mm to -17.5mm in 7.5mm steps
- Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
- Armrest Stack: 58.5mm (no riser kit) to 138.5mm in 5mm increments (With aftermarket Riser Kit)
- There are 80 distinct position options achievable just by moving the armrests. Combine that with risers and this bar offers 1440 possible configurations. As a clip-on bar it is also possible to adjust the extension width and tilt easily.
Origin
The supersonic was the first of our generation brackets - resulting from careful analysis of the way riders use their aerobars and the adjustments that need to be made.
The Ergo armrest is an integral part of the overall adjustability scheme. The dual-offset design (shared with Race and Boom armrest) gives the most precise adjustment range of any armrest on the market. This, along with the evenly curved shape, allows it to work well for the majority of riders.
Extensions
- Extension Shape: The 35c extensions offer a 35 deg ski bend shape. This facilitates a slightly turned-down wrist position to create a streamlined hand position. They are 400mm long and can be cut to size to suit nearly ever rider. They are drilled for rear-exit cable routing.
- Bracket: Supersonic
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Ergo / 10mm Pads
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Offset: -85mm to -17.5mm in 7.5mm steps
- Armrest Stack: The minimum is 58.5mm and the bracket is compatible with our existing risers which add up to 138.5mm stack with (70mm of spacers added)

The Supersonic bracket (previously know as the J5) is the first and premier model of the new generation Profile Design brackets. It offers easier adjustments and a greater fit range than anything that came before it. Paring this bracket with the ergo armrest offers industry leading fit options and greater comfort.
Performance
The Supersonic/Ergo platform is designed to give riders the freedom to find their best possible position with a huge range of independence adjustments.
Fit Data
- Armrest Offset: -85mm to -17.5mm in 7.5mm steps
- Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
- Armrest Stack: 58.5mm (no riser kit) to 138.5mm in 5mm increments (With aftermarket Riser Kit)
- There are 80 distinct position options achievable just by moving the armrests. Combine that with risers and this bar offers 1440 possible configurations. As a clip on bar it is also possible to adjust the extension width and tilt easily.
Origin
- The Supersonic was the first of our generation brackets - resulting from careful analysis of the way riders use their aerobars and the adjustments that need to be made.
- The Ergo armrest is an integral part of the overall adjustability scheme. The dual - offset design (shared with Race and Boom armrest) gives the most precise adjustment range of any armrest on the market. This, along with the evenly curved shape, allows it to work well for the majority of riders.
Extensions
- Extension Shape: The 50c extensions offer a 50 deg ski bend shape with a 7.5mm (per side) lateral shift. This allows a neutral wrist angle with the capability to fine tune the grip width. They are 400mm long and can be cut to suit nearly every rider. They are drilled for rear-exit cable routing.
- Bracket: Supersonic
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Ergo / 10mm Pads
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Offset: -85mm to -17.5mm in 7.5mm steps
- Armrest Stack: The minimum is 58.5mm and the bracket is compatible with our existing risers which add up to 138.5mm stack with (70mm of spacers added)

Campagnolo's Record EPS V2 Interface Unit is like a translator, the vital piece of the electronic shifting puzzle. Mounted to the brake cable or the handlebar, it processes the data churned out by the EPS Power Unit (sold separately) and communicates it to you via an easy-to-read colored LED. Plus, it plays the critical role of converting every analog shift you send its way into a digital format so the system can work as a cohesive whole. There's also an easy-to-read LED battery gauge so you know when it's time to recharge the system. And don't mind the weather, as it's totally waterproof.

The RockShox AXS controller ushers in the next generation of a clean cockpit with a completely cable-free design. With the touch of a button, operate the new Reverb AXS seatpost with less effort than ever before. Open up all the possibilities with AXS.
- AXS app lets you customize configurations, monitor battery levels, update firmware and much more for all RockShox and SRAM AXS enabled components
- Compatible with Matchmaker X
- System is completely water and dust proof to IP69K

The Subsonic/Race/35a aerobar combines the low stack Subsonic bracket with the arm-hugging Race armrest to offer an industry-leading fit range oriented towards low, narrow positions. The 35a extension offers a comfortable 35 degree angle with a 80mm rise. This is the only low stack clip-on in the market that maintains the pad-to-grip angle as the bar is stacked up
Subsonic is not just another aerobar bracket. It brings our next-generation fit range to a low stack bracket design. This allows the bar to use our riser kits to increase the stack without changing the relationship between the armrest and the grips. The Race armrest has been designed to tightly cup the riders arms – facilitating a narrow position and increasing control at speed.
Performance
- The Subsonic/Race is designed to achieve a lower stack height than standard aerobars, without the added frontal area of a below-the-basebar extension clamping system. This improves aerodynamics and the fit range.
Fit Data
- Armrest offset: -85mm to -17.5mm in 7.5mm steps
- Armrest Width: 142mm to 272mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Stack: The minimum is 40mm and the bracket is compatible with our existing risers which add up to 70mm of stack in 5mm increments.
- The extension rotation can be easily adjusted using the shaft bolt. There is a 40mm range of extension length adjustment once the extensions have been cut.
There are 80 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1200 possible configurations. As a clip on bar it is also possible to adjust the extension width and tilt easily. This is the most adjustable low stack clip-on on the market.
Origin Story
After we released the Supersonic (J5) as a premium bracket with market leading fit options and verstility we wanted to bring the same kind of options to teh rest of our range of brackets and thus aerobars.
Where our supersonic and Sonic brackets have a minimum stack of around 60mm, like most of the popular aerobars - we wanted the Subsonic to offer a substantially lower position. This helps the segment of the market who struggle to get into their ideal position with modern bike frames. And it was vital that we include stack height adjustment without altering the pad grip relationship - so our riders have the ability to fine-tune every aspect of their setup.
The Race armrest shares the flippable design of the rest of our new generation armrests. By swapping sides or rotating the armrest, smaller increments of movement are achieved - making it simple to fine-tune a rider's position or match the position from their previous aerobar or bike. Additionally, there are two thicknesses of cushion available to ensure a snug fit for different sized arms.
Who is it for
- This bar is perfect for riders who wish to achieve lower positions than are possible with standard aerobar designs. Unlike other low stack bars, it allows fine-tuning of the stack height so the rider is not limited to only one armpad height. With the Race armrests fitted, it is tailored towards riders who intend to be low and narrow to punch the smallest possible hole through the wind.
- Bracket: Subsonic
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Race / 5mm Pads
- Extension Length: 350mm
- Width: 142mm to 272mm
- Weight: 590g

Get ready to get fast with Vision's Team Clip-Ons. The butted-aluminum J-bend extensions are light and stiff, plus they feature fully internal cable routing. You'll also love the 3-position carbon arm rests with supportive foam pads for dialing in your ideal aero position.

The new range of extensions have evolved from our well proven T-Series. They have been designed to offer distinct fit options. We have also adopted a new naming system whereby the name gives the angle material of the extension. Thus 35c is a 35° bend in aluminum.
Performance
- The sole purpose of extensions is to provide a comfortable position for the riders hands relative to the armrests. They enhance performance by allowing the rider to relax into their optimal position. Which is why we provide different fit options so each rider can chase their best performance.
Fit Data
- Extension Shape: A 35 degree ski-bend extension suited to riders who prefer to adopt a wrist angle that is on the low side of the neutral range.
- The 35c is a straight 35° bend.
Tech Guide
- All the extensions have a 22.2mm diameter in the clamping area.
- They are designed for cables to be routed out the rear of the extensions so do not have cable exit holes.
Who is it for?
- The extensions will fit in any aerobar that is designed for 22.2mm. So can be used by any rider wishing to improve the comfort of their aerobar grips.
- Length: 400mm
- Outer Diameter: 22.2mm
- Construction: Carbon
- Weight: 262g/pair

The new range of extensions have evolved from our well proven T-Series. They have been designed to offer distinct fit options. We have also adopted a new naming system whereby the name gives the angle material of the extension. Thus 45/25c is a 45° / 25° bend in aluminum.
Performance
- The sole purpose of extensions is to provide a comfortable position for the riders hands relative to the armrests. They enhance performance by allowing the rider to relax into their optimal position. Which is why we provide different fit options so each rider can chase their best performance.
Fit Data
- The 45/25c extensions have a first section at 45° and the grip at 25°. The rider can choose whether to hold high for the shrugged position or low for a more open, head up position.
- The 45/25a offer a 7.5mm lateral shift per side. This allows the rider to get their hands narrower or wider without tilting the extensions so much that the shifters touch.
Origin
- Recent trends in aerobar fit have been towards higher hand positions, so we've increased the rise compared to previous generation extensions. We have focused on the most popular angles from our previous range and added the 45/25c as a multi position option.
Tech Guide
- All the extensions have a 22.2mm diameter in the clamping area.
- They are designed for cables to be routed out the rear of the extensions so do not have cable exit holes.
Who is it for?
- The extensions will fit in any aerobar that is designed for 22.2mm. So can be used by any rider wishing to improve the comfort of their aerobar grips.
- Length: 400mm
- Outer Diameter: 22.2mm
- Construction: Carbon
- Weight: 242g/pair

The new range of extensions have evolved from our well proven T-Series. They have been designed to offer distinct fit options. We have also adopted a new naming system whereby the name gives the angle material of the extension. Thus 50c is a 50° bend in carbon.
Performance
- The sole purpose of extensions is to provide a comfortable position for the riders hands relative to the armrests. They enhance performance by allowing the rider to relax into their optimal position. Which is why we provide different fit options so each rider can chase their best performance.
Fit Data
- Extension Shape: A 50c extensions offer a 50° ski bend shape.
- The 50c offer a 7.5mm lateral shift per side. This allows the rider to get their hands narrower or wider without tilting the extensions so much that the shifters touch.
Origin
- Recent trends in aerobar fit have been towards higher hand positions, so we've increased the rise compared to previous generation extensions. We have focused on the most popular angles from our previous range and added the 50c as a multi position option.
Tech Guide
- All the extensions have a 22.2mm diameter in the clamping area.
- They are designed for cables to be routed out the rear of the extensions so they do not have cable exit holes.
Who is it for?
- The extensions will fit in any aerobar that is designed for 22.2mm. So can be used by any rider wishing to improve the comfort of their aerobar grips.
- Length: 400mm
- Outer Diameter: 22.2mm
- Construction: Carbon
- Weight: 268g/pair

The perfect bike fit needs to blend slippery aerodynamics and a comfortable, stress-free body position while optimizing control over the bike. Top fitters are constantly devising new methods to maximize and balance these goals. Designed using feedback from top fitters, Zipp’s Vuka Carbon Extensions give you all the options needed to optimize your position and go for the win or your personal best: Vuka Carbon Evo 70 and 110 extensions Vuka Evo extensions decrease drag by starting airflow over the body sooner while keeping the arms and wrists in a comfortable, relaxed position. The Evo shape, with a 20mm inward roll and multi-radius bend, is now available for the first time in carbon, allowing for even more complex shaping and lighter weight. Vuka Race Carbon Extension The Vuka Race Carbon Extension was designed using data compiled from thousands of fit sessions with recreational and professional cyclists and triathletes by the world’s best fitters. The Vuka Race bend places the wrists at a more natural bend to help riders remain in their tuck to optimize aerodynamics.
- Compatible with Vuka Clip, Vuka Aero and all 22.2 systems
- Internal cable routing

The Airstryke II takes the features of the ever popular Airstryke and adds an expanded fit range and more comfortable armrest. The flip up bracket and classic shape are retained.
Performance
The Airstryke II is intended to allow riders to add aerobars to their road or adventure bike without sacrificing the ability to hold the bars close to the stem. The comfortable grip angle and smoothly curved armrest offer a relaxed position for long days in the saddle.
Fit Data
- Armrest Offset: -85mm to 17.5mm in 7.5mm steps
- Armrest Width: 131mm to 298mm in 18.5mm steps
- Armrest Stack: 40mm
Origin
As one of the most popular model in the history of aerobars it seemed appropriate to update the much loved Airstryke with our new generation fit range and comfort focused armrest. We didn't want to change the elements that have made the bar so successful and the changes made just enhance the adjustability and comfort.
- Bracket: L2 Flip-Up
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Ergo Armrest
- Armrest Stack: 40mm
- Reach: -85mm to 17.5mm in 7.5mm steps
- Extension Adjustment: 150mm (center of basebar - end)
- Armrest Width: 155mm - 203mm
- Weight: 592g

Our new Sonic bracket has been designed as the successor to the J2, which has been a somewhat ignored part of our range. With this update it brings our new generation fit range to a wider range of price points, replacing the J2 bracket. The Ergo armrest has been created to offer both a huge upgrade in fit range as well as increased rider comfort with a supportive curve to cup the arms.
Performance
- The Sonic/Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is, of course, to get the rider into a fast position. Despite a fairly minimalist appearance, the Sonic/Ergo offers a comprehensive fit range for exactly this purpose.
Fit Data
- Armrest Offset: -70mm to -2.5mm in 7.5mm steps
- Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
- Armrest Stack: 60mm (no riser kit) to 130mm in 5mm increments (With aftermarket Riser Kit)
- The extension length and rotation can be easily adjusted using the top bolt.
There are 100 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1500 possible configurations. As a clip-on bar it is also possible to adjust the extension width and tilt easily. This is the most adjustable clip-on bar on the market (and in history).
It is worth noting that our previous top level clip-on aerobar, the J4/F35, offered 90 possible configurations. This highlights the significant step forward we’ve made with our new generation aerobars in allowing riders to precisely adjust their position.
Origin
- After we released the Supersonic (J5) as a premium bracket with market-leading fit options and versatility, we wanted to bring the same kind of options to the rest of our range of brackets and thus aerobars. By simplifying the extension clamp and shifting the wing forward to the bar center line, we were able to meet our targets. As a consequence of the simplification the Sonic is the lightest of our current brackets. The Ergo armrest shares the flippable design of the rest of our new generation armrests. By swapping sides or rotating the armrests, smaller increments of movement are achieved – making it simple to fine-tune a rider's position or match the position from their previous aerobar or bike.
Extensions
- Extension Shape: A 35 degree ski-bend extension suited to riders who prefer to adopt a wrist angle that is on the low side of the neutral range.
- The 35a is a straight 35° bend.
- Bracket: Sonic
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Ergo / 10mm Pads
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Offset: -70mm to -2.5mm in 7.5mm steps
- Armrest Stack: The minimum is 60mm and the bracket is compatible with our existing risers which add up to 130mm stack with (70mm of spacers added)
- Weight: 559g

Our new Sonic bracket has been designed as the successor to the J2, which has been a somewhat ignored part of our range. With this update, it brings our new generation fit range to a wider range of price points, replacing the J2 bracket. The Ergo armrest has been created to offer both a huge upgrade in fit range as well as increased rider comfort with a supportive curve to cup the arms.
Performance
- The Sonic/Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is, of course, to get the rider into a fast position. Despite a fairly minimalist appearance, the Sonic/Ergo offers a comprehensive fit range for exactly this purpose.
Fit Data
- The extension length and rotation can be easily adjusted using the top bolt. There are 100 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1500 possible configurations. As a clip-on bar it is also possible to adjust the extension width and tilt easily. This is the most adjustable clip-on bar on the market (and in history).
It is worth noting that our previous top level clip-on aerobar, the J4/F35, offered 90 possible configurations. This highlights the significant step forward we’ve made with our new generation aerobars in allowing riders to precisely adjust their position.
Origin
- After we released the Supersonic (J5) as a premium bracket with market-leading fit options and versatility, we wanted to bring the same kind of options to the rest of our range of brackets and thus aerobars. By simplifying the extension clamp and shifting the wing forward to the bar center line, we were able to meet our targets. As a consequence of the simplification the Sonic is the lightest of our current brackets.
The Ergo armrest shares the flippable design of the rest of our new generation armrests. By swapping sides or rotating the armrests smaller increments of movement are achieved – making it simple to fine tune a riders position or match the position from their previous aerobar or bike.
- Bracket: Sonic
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Ergo / 10mm Pads
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Offset: -70mm to -2.5mm in 7.5mm steps
- Armrest Stack: The minimum is 60mm and the bracket is compatible with our existing risers which add up to 130mm stack with (70mm of spacers added)
- Weight: 559g

Our new Sonic bracket has been designed as the successor to the J2, which has been a somewhat ignored part of our range. With this update, it brings our new generation fit range to a wider range of price points, replacing the J2 bracket. The Ergo armrest has been created to offer both a huge upgrade in fit range as well as increased rider comfort with a supportive curve to cup the arms.
Performance
- The Sonic/Ergo is designed to present minimal frontal area to create as little aerodynamic drag as possible. The main purpose of an aerobar is, of course, to get the rider into a fast position. Despite a fairly minimalist appearance, the Sonic/Ergo offers a comprehensive fit range for exactly this purpose.
Fit Data
- Armrest Offset: -70mm to -2.5mm in 7.5mm steps
- Armrest Width: 124mm to 290mm in 18.5mm steps (With Extensions at 100mm)
- Armrest Stack: 60mm (no riser kit) to 130mm in 5mm increments (With aftermarket Riser Kit)
- The extension length and rotation can be easily adjusted using the top bolt.
There are 100 distinct position options achievable just by moving the armrests. Combine that with the risers and this bar offers 1500 possible configurations. As a clip-on bar it is also possible to adjust the extension width and tilt easily. This is the most adjustable clip-on bar on the market (and in history).
It is worth noting that our previous top-level clip-on aerobar, the J4/F35, offered 90 possible configurations. This highlights the significant step forward we’ve made with our new generation aerobars in allowing riders to precisely adjust their position.
Origin
- After we released the Supersonic (J5) as a premium bracket with market-leading fit options and versatility we wanted to bring the same kind of options to the rest of our range of brackets and thus aerobars. By simplifying the extension clamp and shifting the wing forward to the bar center line we were able to meet our targets. As a consequence of the simplification the Sonic is the lightest of our current brackets.
- The Ergo armrest shares the flippable design of the rest of our new generation armrests. By swapping sides or rotating the armrests smaller increments of movement are achieved – making it simple to fine-tune a riders position or match the position from their previous aerobar or bike.
Extensions
- Extension Shape: A 50a extensions offer a 50° ski bend shape.
The 50a offer a 7.5mm lateral shift per side. This allows the rider to get their hands narrower or wider without tilting the extensions so much that the shifters touch.
- Bracket: Sonic
- Clamp Diameter: 31.8mm (26.0 w/Shims)
- Armrest: Ergo / 10mm Pads
- Armrest Width: 124mm to 290mm in 18.5mm steps (with Extensions at 100mm)
- Armrest Offset: -70mm to -2.5mm in 7.5mm steps
- Armrest Stack: The minimum is 60mm and the bracket is compatible with our existing risers which add up to 130mm stack with (70mm of spacers added)
- Weight: 559g

The Evo bracket allows you to upgrade an existing Aeria bar with a massively increased fit range as well as built in tilt. It is compatible with the existing spacer kit and armrests.
Compatible Aerobars
- Profile Design Aeria T2 and T4 Carbon and Aluminum version
- BMC TM01 TT cockpit
- Parlee TTiR cockpit
Non-Compatible Aerobars
- Scott Plasma 5 TT4 aerobars - Please note that it must not be fitted to a Scott Plasma 5 as the bar was not designed for this style of bracket.

The VukaClip is all about providing the ultimate in fit, security, and adjustability for you to be faster and more efficient in your triathlon or time-trial aero position at an affordable price.
Redesigned to be easier to set up and adjust. The VukaClip is available with an above-bar or below-bar mounting system for achieving an optimized aero position. The VukaClip also has a large, redesigned armrest to reduce pressure points and increase comfort. The VukaClip is made with the industry-standard 22.2mm clamp diameter for maximum versatility, making it compatible with Vuka Alumina extensions, the Vuka Carbon Extensions as well as most extensions on the market.
Features
- Fit, security, and adjustability
- Above-bar or below-bar mounting system
- Compatible with most extensions